Diane Mastrull: Gas-free motorcycles are new hope for a new Eckenhoff business

There was a time when Ted and Glenn Eckenhoff would have cared about Tuesday's announcement by General Motors Co. that its U.S. sales of cars and small crossovers with good gas mileage had increased 12 percent in March. Not anymore. During a 90-minute interview that day, the father-son business team that spent decades selling GM cars in Cherry Hill didn't once mention the auto giant's promising month.